Thomas Edward Mahir CBE GM (1 March 1915 – 29 January 1970) was a British police officer in the London Metropolitan Police. Mahir was the son of the Reverend Edward Mahir and his wife Dorothy. He was educated at in Somerset and taught at St Aubyn's Preparatory School in Tiverton, Devon, from 1932 to 1935, when he entered Hendon Police College as a direct entrant. He passed out in 1936, was confirmed as a Junior Station Inspector in 1937 and served in "G" and "H" Divisions in the East End of London. He was promoted Station Inspector in 1939.